The calculated distance (air line) between Harburg and Buchholz in der Nordheide is approximately 10 miles respectively 17 kilometers.
By car or train, the actual journey to Buchholz in der Nordheide is certainly longer, as only the direct route (as the crow flies) between Harburg and Buchholz in der Nordheide has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles